DD (23 months) has recently started refusing to go to sleep unless one of us sits with her. She was previously a good self-settler. If we try to leave the room she jumps out of bed and comes running out to find us. (We had to take the side off her cot bed a few months ago as she was starting to try to climb over it). We can spend up to two hours a night returning her to bed, and she thinks its a big game. After a bit of mumsnet research we decided a stair gate across her bedroom door was the way to go, and installed it last night. Tonight she has learnt to climb over it. WTF do we do now, other than sit with her every night until she sleeps?